On Thu, 2 Dec 2010 22:16:25 +0100 Mario 'BitKoenig' Holbe <Mario.Holbe@xxxxxxxxxxxxx> wrote: > Stefan /*St0fF*/ Hübner <stefan.huebner@xxxxxxxxxxxxxxxxxx> wrote: > > Now I have the effect that upon plugging in drives that formerly were > > part of an array, the md_mod modules gets loaded and tries to > > auto-assemble arrays. This disturbs the diagnosis. > > I've tried raid=noautodetect as kernel commandline, and I grepped the > > source for the MODULE_PARM_DESC macro, which yielded no (useful) result. > > This "automagic" behaviour happens since 2.6.36. > > Are you sure this autodetection is triggered by the module? > And are you sure this behaviour is bound to this specific kernel > version? > > In-Kernel auto-assembly is usually not active when md is compiled as > module. Probably in your case this is some udev-triggered assembly? s/usually not/never/ With a sufficiently recent mdadm, you can put AUTO -all in mdadm.conf to disable auto-assembly. Alternately, find the udev rule (/lib/udev/rules.d/64-md-something) and comment out the bit where it runs "mdadm -I" or "mdadm --incremental". NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
